| 1 | /* SPDX-License-Identifier: GPL-2.0+ WITH GCC-exception-2.0
|
| 2 |
|
| 3 | Copyright (C) 1994, 1995, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
|
| 4 | 2004, 2005, 2006
|
| 5 | Free Software Foundation, Inc.
|
| 6 | */
|
| 7 |
|
| 8 | !! libgcc routines for the Renesas / SuperH SH CPUs.
|
| 9 | !! Contributed by Steve Chamberlain.
|
| 10 | !! sac@cygnus.com
|
| 11 |
|
| 12 | !! ashiftrt_r4_x, ___ashrsi3, ___ashlsi3, ___lshrsi3 routines
|
| 13 | !! recoded in assembly by Toshiyasu Morita
|
| 14 | !! tm@netcom.com
|
| 15 |
|
| 16 | /* SH2 optimizations for ___ashrsi3, ___ashlsi3, ___lshrsi3 and
|
| 17 | ELF local label prefixes by J"orn Rennecke
|
| 18 | [email protected] */
|
| 19 |
|
| 20 | !
|
| 21 | ! __ashlsi3
|
| 22 | !
|
| 23 | ! Entry:
|
| 24 | !
|
| 25 | ! r4: Value to shift
|
| 26 | ! r5: Shifts
|
| 27 | !
|
| 28 | ! Exit:
|
| 29 | !
|
| 30 | ! r0: Result
|
| 31 | !
|
| 32 | ! Destroys:
|
| 33 | !
|
| 34 | ! (none)
|
| 35 | !
|
| 36 | ! __ashlsi3_r0
|
| 37 | !
|
| 38 | ! Entry:
|
| 39 | !
|
| 40 | ! r4: Value to shift
|
| 41 | ! r0: Shifts
|
| 42 | !
|
| 43 | ! Exit:
|
| 44 | !
|
| 45 | ! r0: Result
|
| 46 | !
|
| 47 | ! Destroys:
|
| 48 | !
|
| 49 | ! (none)
|
| 50 |
|
| 51 |
|
| 52 | .global __ashlsi3
|
| 53 | .global __ashlsi3_r0
|
| 54 |
|
| 55 | .align 2
|
| 56 | __ashlsi3:
|
| 57 | mov r5,r0
|
| 58 | .align 2
|
| 59 | __ashlsi3_r0:
|
| 60 | and #31,r0
|
| 61 | mov.l r4,@-r15
|
| 62 | mov r0,r4
|
| 63 | mova ashlsi3_table,r0
|
| 64 | mov.b @(r0,r4),r4
|
| 65 | add r4,r0
|
| 66 | jmp @r0
|
| 67 | mov.l @r15+,r0
|
| 68 |
|
| 69 | .align 2
|
| 70 | ashlsi3_table:
|
| 71 | .byte ashlsi3_0-ashlsi3_table
|
| 72 | .byte ashlsi3_1-ashlsi3_table
|
| 73 | .byte ashlsi3_2-ashlsi3_table
|
| 74 | .byte ashlsi3_3-ashlsi3_table
|
| 75 | .byte ashlsi3_4-ashlsi3_table
|
| 76 | .byte ashlsi3_5-ashlsi3_table
|
| 77 | .byte ashlsi3_6-ashlsi3_table
|
| 78 | .byte ashlsi3_7-ashlsi3_table
|
| 79 | .byte ashlsi3_8-ashlsi3_table
|
| 80 | .byte ashlsi3_9-ashlsi3_table
|
| 81 | .byte ashlsi3_10-ashlsi3_table
|
| 82 | .byte ashlsi3_11-ashlsi3_table
|
| 83 | .byte ashlsi3_12-ashlsi3_table
|
| 84 | .byte ashlsi3_13-ashlsi3_table
|
| 85 | .byte ashlsi3_14-ashlsi3_table
|
| 86 | .byte ashlsi3_15-ashlsi3_table
|
| 87 | .byte ashlsi3_16-ashlsi3_table
|
| 88 | .byte ashlsi3_17-ashlsi3_table
|
| 89 | .byte ashlsi3_18-ashlsi3_table
|
| 90 | .byte ashlsi3_19-ashlsi3_table
|
| 91 | .byte ashlsi3_20-ashlsi3_table
|
| 92 | .byte ashlsi3_21-ashlsi3_table
|
| 93 | .byte ashlsi3_22-ashlsi3_table
|
| 94 | .byte ashlsi3_23-ashlsi3_table
|
| 95 | .byte ashlsi3_24-ashlsi3_table
|
| 96 | .byte ashlsi3_25-ashlsi3_table
|
| 97 | .byte ashlsi3_26-ashlsi3_table
|
| 98 | .byte ashlsi3_27-ashlsi3_table
|
| 99 | .byte ashlsi3_28-ashlsi3_table
|
| 100 | .byte ashlsi3_29-ashlsi3_table
|
| 101 | .byte ashlsi3_30-ashlsi3_table
|
| 102 | .byte ashlsi3_31-ashlsi3_table
|
| 103 |
|
| 104 | ashlsi3_6:
|
| 105 | shll2 r0
|
| 106 | ashlsi3_4:
|
| 107 | shll2 r0
|
| 108 | ashlsi3_2:
|
| 109 | rts
|
| 110 | shll2 r0
|
| 111 |
|
| 112 | ashlsi3_7:
|
| 113 | shll2 r0
|
| 114 | ashlsi3_5:
|
| 115 | shll2 r0
|
| 116 | ashlsi3_3:
|
| 117 | shll2 r0
|
| 118 | ashlsi3_1:
|
| 119 | rts
|
| 120 | shll r0
|
| 121 |
|
| 122 | ashlsi3_14:
|
| 123 | shll2 r0
|
| 124 | ashlsi3_12:
|
| 125 | shll2 r0
|
| 126 | ashlsi3_10:
|
| 127 | shll2 r0
|
| 128 | ashlsi3_8:
|
| 129 | rts
|
| 130 | shll8 r0
|
| 131 |
|
| 132 | ashlsi3_15:
|
| 133 | shll2 r0
|
| 134 | ashlsi3_13:
|
| 135 | shll2 r0
|
| 136 | ashlsi3_11:
|
| 137 | shll2 r0
|
| 138 | ashlsi3_9:
|
| 139 | shll8 r0
|
| 140 | rts
|
| 141 | shll r0
|
| 142 |
|
| 143 | ashlsi3_22:
|
| 144 | shll2 r0
|
| 145 | ashlsi3_20:
|
| 146 | shll2 r0
|
| 147 | ashlsi3_18:
|
| 148 | shll2 r0
|
| 149 | ashlsi3_16:
|
| 150 | rts
|
| 151 | shll16 r0
|
| 152 |
|
| 153 | ashlsi3_23:
|
| 154 | shll2 r0
|
| 155 | ashlsi3_21:
|
| 156 | shll2 r0
|
| 157 | ashlsi3_19:
|
| 158 | shll2 r0
|
| 159 | ashlsi3_17:
|
| 160 | shll16 r0
|
| 161 | rts
|
| 162 | shll r0
|
| 163 |
|
| 164 | ashlsi3_30:
|
| 165 | shll2 r0
|
| 166 | ashlsi3_28:
|
| 167 | shll2 r0
|
| 168 | ashlsi3_26:
|
| 169 | shll2 r0
|
| 170 | ashlsi3_24:
|
| 171 | shll16 r0
|
| 172 | rts
|
| 173 | shll8 r0
|
| 174 |
|
| 175 | ashlsi3_31:
|
| 176 | shll2 r0
|
| 177 | ashlsi3_29:
|
| 178 | shll2 r0
|
| 179 | ashlsi3_27:
|
| 180 | shll2 r0
|
| 181 | ashlsi3_25:
|
| 182 | shll16 r0
|
| 183 | shll8 r0
|
| 184 | rts
|
| 185 | shll r0
|
| 186 |
|
| 187 | ashlsi3_0:
|
| 188 | rts
|
| 189 | nop
|